Strange error

Tod McQuillin devin at
Sun Jun 12 01:21:57 GMT 2005

On Sun, 12 Jun 2005, Peter Jeremy wrote:

> On Fri, 2005-Jun-10 22:41:36 +0200, Jack Raats wrote:
>> This day I've a very strange error when trying to connect to my FreeBSD machine (4.11-STABLE)
>> I got the following error:
>> ssh_exchange_identification: Connection closed by remote host
>> Can anyone give me any clue what's wrong?

I missed the start of this thread but this sounds like tcpwrappers closing 
the connection.

Check your /etc/hosts.allow and look in /var/log/messages for a message 

May 31 12:18:36 hostname sshd[1594]: warning: /etc/hosts.allow, line 32: can't verify hostname: getaddrinfo(, AF_INET) failed
May 31 12:18:37 hostname sshd[1594]: refused connect from (

If you see something like that you can change the entry in your 
/etc/hosts.allow to allow ssh connections from that specific IP or 

see hosts_options(5) for details.
Tod McQuillin

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